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util.go
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/
util.go
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package main
import (
"fmt"
"os"
"runtime"
)
func MetricPrefix(n int64) string {
if n > 1e9 {
return fmt.Sprintf("%.02f G", float64(n)/1e9)
}
if n > 1e6 {
return fmt.Sprintf("%.02f M", float64(n)/1e6)
}
if n > 1e3 {
return fmt.Sprintf("%.01f k", float64(n)/1e3)
}
return fmt.Sprintf("%d ", n)
}
func BinaryPrefix(n int64) string {
if n > 1<<30 {
return fmt.Sprintf("%.02f Gi", float64(n)/(1<<30))
}
if n > 1<<20 {
return fmt.Sprintf("%.02f Mi", float64(n)/(1<<20))
}
if n > 1<<10 {
return fmt.Sprintf("%.01f Ki", float64(n)/(1<<10))
}
return fmt.Sprintf("%d ", n)
}
func Rename(from, to string) error {
if runtime.GOOS == "windows" {
err := os.Remove(to)
if err != nil && !os.IsNotExist(err) {
warnln(err)
}
}
return os.Rename(from, to)
}